Home Bosch Rexroth Indramat MKD Synchronous Motors MKD025B-144-GP0-KN

MKD025B-144-GP0-KN

Name: MKD025B-144-GP0-KN
Brand: Bosch Rexroth Indramat
Price: 219 USD
Availability: InStock
Rating: 4.7 (9 reviews)

Rated 4.7 (9 total ratings)

MPN: R911266627

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The MKD025B-144-GP0-KN is a standard housing servomotor with a protection rating of IP65. Manufactured by Bosch Rexroth Indramat, it is part of the MKD Series and features resolver feedback for its motor encoder. This motor includes a terminal box for power connection and can reach a speed rating of 5000 RPM.

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Product Description:

MKD025B-144-GP0-KN is a servo motor. It belongs to the MKD synchronous motor product line from Bosch Rexroth. MKD motor applications include machine tools, packaging machines, automation and handling. Benefits of MKD motors include high reliability, high performance data, maintenance-free operation, high overload capability and user under wide range of operating conditions. MKD motors are permanent-magnet motors with electronic commutation. Special magnet materials permit the motors to be designed with low-inertia mass. Personnel handling MKD motors must read and understand the appropriate safety instructions and intended use. The motors must be installed, operated and maintained according to the regulations and environmental conditions specified in the product documentation. MKD025B-144-GP0-KN is a motor that supports resolver feedback. Feedback is a feature that allows precise motor speed and positon control in closed loop control systems.

The motor is deployed in combination with a motor controller. It has a shaft with keyway. The shaft is equipped with a shaft seal for improved ingress protection. A terminal box on the housing allows connection to the power cable. Speed rating of the MKD025B-144-GP0-KN motor is 5000 RPM and the maximum motor speed is 9000 RPM. The continuous torque at standstill is 0.9 Nm and the continuous current at standstill is 5.1 Amps. Bosch has designed the motor for convection cooling. It requires 0 to 45 degrees Celsius ambient temperature for optimal performance. The theoretical maximum torque is 4 Nm. Thermal time constant for the motor is 15 minutes. Mass of the motor is 2 kilograms. It has an IP65 rated housing for robust ingress protection. Insulation class of the motor is F. A black paint coat is applied to the motor housing.

Specs
Revisions
Common Troubleshooting Steps
Similar Ordering Codes
Product Comparison
Common Error Codes

Holding brake
No

Housing design
Standard

Manufacturer
Bosch Rexroth

Motor encoder
Resolver feedback

Power connection
Terminal box

Product type
Servo motor

Protection rating
IP65

Shaft
With key

Shaft seal
Yes

Speed rating
5000 RPM

MKD025B144GP0KN
MKD025B 144 GP0 KN
mkd025b-144-gp0-kn
MKD25B-144-GP0-KN

Fault / Issue	Possible Cause	Corrective Action
Motor fails to start	No mains or DC-bus power; enable signal missing	Check supply voltage and fuses, verify drive enable, reset and re-enable system
Motor overheats quickly	Blocked airflow or load above nameplate torque	Clear vents, improve cooling, reduce duty cycle, confirm application sizing
Excessive vibration / noise	Coupling misalignment or worn bearings	Realign shaft, tighten bolts, replace bearings if play or rumble detected
Position accuracy drifts	Encoder cable loose or feedback contaminated	Inspect/clean encoder, reseat connector, replace cable or encoder if errors persist
Holding brake won’t release	24 V brake circuit open, coil worn, or brake gap too wide	Measure brake voltage, test coil resistance, adjust or replace brake assembly
Intermittent speed hunting	ncorrect drive tuning or electrical noise on feedback	Reload motor data set, retune gain values, reroute/shield feedback cable
Overload trip at low torque	Undersized amplifier or mechanical binding	Compare drive continuous current to motor demand, inspect mechanics for drag
Moisture inside housing	Seal failure or condensation	Dry motor, improve IP sealing, add shaft-seal or protective cover, control ambient humidity
Shaft sticks during rotation	Foreign debris or rotor contact	Disassemble end-bells, clean internals, check rotor/stator clearance, replace damaged parts
Repeated undervoltage alarms	Line sag, single-phase loss, or weak supply	Measure mains under load, correct wiring, add line reactor or UPS to stabilize

Ordering Codes

MKD025B-144-KP0-KN

MKD025B-144-KG0-KN

MKD025B-144-GG0-KN

MKD025B-144-GP0-KN-SA001

MKD025B-144-KP0-KN-SA001

Part Number	Cont. Torque @ 0 rpm (Nm)	Rated Speed (rpm)	Max Speed (rpm)	Encoder / Feedback	Shaft Design	Holding Brake
MKD025B-144-GP0-KN (baseline)	0.9 Nm	5 000	9 000	Resolver, multiturn	Keyed shaft + seal	No
MKD025B-144-KP0-KN	0.9 Nm	—	4 000	Resolver	Keyed shaft	No
MKD025B-058-KP0-KN	0.9 Nm	3 000	3 000	Resolver	Keyed shaft	No
MKD041B-144-KP0-KN	2.7 Nm	4 500	7 500	Resolver	Keyed shaft	No
MSK030C-0900-NN-M1-UG0-NNNN	0.9 Nm	—	9 000	Hiperface multiturn absolute	Plain shaft	No

Error Code	What it means
F207	“Switching to un-initialized operation mode” – the drive was commanded into a mode that has not been configured in parameters S-0-0032…35.
F208	“Motor type has changed” – the connected motor’s ID stored in feedback memory does not match the parameterised motor; the drive requests a Basic Load.
F209	“PL Load parameter default values” – firmware/parameter mismatch; the controller is asking to restore factory default parameters.
F218	Amplifier (heatsink) over-temperature shutdown; ambient temperature too high or cooling obstructed.
F219	Motor over-temperature shutdown; MKD025B’s stator temperature exceeded ~155 °C or the temperature-sensor circuit is faulty.
F220	Bleeder (braking-resistor) overload shutdown – too much regenerative energy returned to the DC bus.
F221	Motor-temperature surveillance defective – open or short circuit in the temperature-monitor leads inside the motor cable.
F226	Undervoltage in power section – DC-bus voltage dropped below the minimum threshold.
F242	Encoder 2 failure: signal amplitude too small – the analogue sin/cos signals of a secondary scale fall below 1 V.
F245	Encoder 2 failure: quadrant error – plausibility check on the secondary encoder detected phase inconsistencies.

Frequently Asked Questions about MKD025B-144-GP0-KN:

Q: What is the operating temperature?

A: The operating temperature for MKD motors is 0 to 40 degrees Celsius.

Q: Which cooling methods does the motor support?

A: MKD motors support convection cooling and surface cooling.

Q: What is the benefit of surface cooling?

A: Surface cooling enables higher performance i.e. higher output torque and current.

Q: What is the maximum motor speed?

A: The maximum speed rating is 9000 RPM.

Q: What is the maximum setup height?

A: The maximum setup height is 1000 meters.

Internal Product Review

‘‘The MKD025B-144-GP0-KN by Bosch Rexroth Indramat is a reliable servo motor designed for high speed applications. This is a premiere choice for an engineer looking to upgrade.’’